采用java语言编写的，类似于Windows 操作系统中的cmd.exe程序。能完成基本的命令如dir、help等基本命令-It is a simple java programming,just like cmd.exe of windows system.It can complete some command as:dir\help and so on.

图书管管理系统，采用java，mysql 开发，包括图书检索。用户登录，权限管理等模块。-Library Management System management，developed in java language .use mysql as the database system.it include the searching books ,login and other function

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